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Range Voting
Range voting
is a single-winner voting
system in which each vote consists of one numerical score
from 0 to U awarded to each candidate,
where U is some positive
number.
In single-digit range voting U is 9,
while two-digit range voting has U=99.
(One could also consider permitting the interval
to be, e.g. ![$ [-10, 10]$](http://myyn.org/static/assets/mathbrowser/article/921/images/img1.png){kind=small}
.)
The candidate with the highest average score wins.
In a common variant, “X” scores also are permitted for candidates
(meaning:“I wish to express no opinion about this candidate”).
For example (46,0,32,99) could be one vote in a 4-candidate two-digit range voting
election; advise 99/0 for best/worst.
Approval voting [1] is the degenerate form of range voting in which there are only two allowed scores: 0 and 1.
Bibliography
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- 1
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S.J. Brams & P. Fishburn: Approval voting, Birkhauser 1983.